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Guides / Dangerous goods (ADR) by road · Updated 30 September 2026

Moving dangerous goods by road between the UK and EU: ADR duties and paperwork

ADR safety rules and customs formalities both apply when hazardous goods travel by lorry between Britain and the EU. Here is who does what, and which documents go with the load.

This guide is also available in Polish.

Dangerous goods travel between Britain and the continent every day: paints, solvents, aerosols, lithium batteries, gases, fuels and cleaning chemicals. When they move by road, two separate sets of rules apply at once. The first is transport safety, governed by the ADR agreement. The second is customs, because since the UK left the EU single market every consignment crossing the border needs declarations. This guide walks through both, sticking to what GOV.UK actually says, so that you know who is responsible for what before a lorry is booked.

What ADR is and why it applies to UK–EU road freight

ADR is the European Agreement concerning the International Carriage of Dangerous Goods by Road. It is administered by the UN Economic Commission for Europe and is updated every two years. It sets out how dangerous goods are classified, packaged, labelled and certified for road carriage. In Great Britain it is given effect through the Carriage of Dangerous Goods Regulations 2009, as amended.

Because ADR is an international agreement rather than an EU law, it continues to govern road journeys between the UK and EU countries. A haulier driving from the Midlands to Poland works to the same core ADR framework at both ends of the trip, but customs formalities are an additional layer that ADR does not cover.

How dangerous goods are classified

Every dangerous substance or article is assigned to one of nine UN classes according to its predominant hazard. Some classes are split into divisions, and many goods are also given a packing group:

The class, the UN number and the packing group follow the goods through the whole supply chain. They drive the packaging standard, the labels, the transport document and, in some cases, the customs data. Getting classification wrong at the start therefore causes problems at every later stage.

The consignor's duties

GOV.UK is clear that the consignor, meaning the business shipping the goods, carries the main responsibility for preparing them. In practice that means:

UN-approved packaging carries a marking beginning with the letters "UN". In the UK the Vehicle Certification Agency certifies packaging. If you are buying ready-approved packaging, check the marking matches the class and packing group of what you are putting inside it.

Labelling for supply is a related but separate topic. GOV.UK notes that the CLP Regulation is progressively replacing the older CHIP rules, and that destination countries may have their own requirements, so a label that works in the UK should still be checked against the rules where the goods will be sold.

Transport documents that travel with the load

A load of dangerous goods must be accompanied by a transport document declaring the prescribed details for each dangerous substance, material or article carried. GOV.UK publishes a multimodal dangerous goods form that can be used for this purpose. For the road leg, GOV.UK's guidance on driving dangerous goods abroad lists what must be carried on the vehicle:

The written emergency instructions follow a standard four-page model that covers all dangerous goods rather than one specific product. They must be in languages that every member of the crew understands. On a UK–EU run with a driver from another country, that is worth checking before departure rather than at a roadside inspection.

The dangerous goods transport document is not a customs declaration. Carrying correct ADR paperwork does not replace the import or export entries required at the border, and a customs entry does not replace the ADR paperwork.

Driver and vehicle requirements

All drivers of vehicles carrying dangerous goods must attend an approved basic training course and hold a vocational training certificate. Some vehicles also need approval. GOV.UK explains that fixed-tank vehicles, tank-battery vehicles and vehicles carrying explosives must pass a technical inspection and certification procedure in their country of registration. In the UK, DVSA issues these approval certificates, which are valid for one year.

If you are a trader rather than a haulier, you are unlikely to manage driver certificates yourself, but you should confirm with your carrier that the driver and vehicle are suitable for the class and quantity you are sending.

Dangerous goods safety advisers

Businesses that regularly transport, load, pack or fill dangerous goods generally have to appoint a dangerous goods safety adviser (DGSA). The adviser monitors compliance, advises management, prepares an annual report, investigates incidents and advises on security. DGSAs hold a vocational certificate after passing written examinations, which in the UK are run by the Scottish Qualifications Authority. GOV.UK notes exemptions, for example where only limited quantities are involved or where dangerous goods are handled only occasionally and are not part of the main business activity. Check the legislation before relying on an exemption.

Crossing the Channel and border facilities

GOV.UK's guidance on driving dangerous goods abroad does not set out specific rules for individual Channel crossings, so check carriage conditions directly with the ferry or tunnel operator you plan to use. The guidance does flag one practical point: inland border facilities may refuse entry to a vehicle carrying certain types of goods, for example hazardous goods. If your customs process depends on attending an inland border facility, plan the route with that in mind.

Radiological security is also screened at UK ports and airports under Programme Cyclamen, which uses passive radiation detection on freight and vehicles.

Customs declarations for dangerous goods

On the customs side, dangerous goods are declared like any other goods, with a commodity code, customs procedure code and the usual header data. Exports leave through the Customs Declaration Service (CDS), and you will need an EORI number. Goods moving under transit follow the rules explained in our guide to T1 transit from the UK to the EU.

There is one dangerous-goods-specific data element to know about. In the CDS export completion guide, data element 6/12, UN Dangerous Goods Code, is only required on a combined exit summary and pre-departure declaration where a UN dangerous goods code applies. It is not required on supplementary declarations (declaration types Y and Z). The field takes the four-character UN number. If a broker files your export, make sure they have the UN number from your transport document so that the two sets of paperwork match.

Some dangerous goods also fall under excise or licensing regimes. Fuels are the obvious example; for a detailed look at that sector, see this article on importing mineral fuels and chemicals under ADR.

A practical sequence

  1. Confirm classification: UN number, class, packing group.
  2. Source UN-approved packaging and apply the correct marks and labels.
  3. Prepare the dangerous goods transport document.
  4. Confirm with the carrier that driver training, vehicle approval and written instructions are in place.
  5. Check crossing and border facility acceptance for your goods.
  6. Arrange the export, transit or import declarations, including the UN code where required.

If you are unsure whether to handle the customs side yourself, our page on whether you need a customs broker sets out the trade-offs.

Related guides

Moving hazardous goods between the UK and EU?

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Sources

General information, not legal, tax or customs advice. Rules change; confirm current requirements on gov.uk or with a registered agent before you ship.